Secunia Security Advisory – A weakness has been reported in Windows XP, which can be exploited to bypass certain rules in the Internet Connection Firewall (ICF). The problem is caused due to the firewall by default accepting incoming connections to ports listened on by the “sessmgr.exe” process.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/34766/sa12793.txt
Source: https://packetstormsecurity.com/files/34766/Secunia-Security-Advisory-12793.html